Special slits within a tread that increase wet and snow traction.
Narrow slits in the tread blocks designed to pump water away and to create more leading edges to increase grip in winter and wet-weather tyres. (See Reading Your Tyre)
Small, thin slots that are molded into the ribs or blocks of a tread pattern that aid in the traction of the vehicle in wet weather conditions.
small slits in a tire's tread that help push water away from the crown of the tire for improved wet traction. They also provide biting edges for ice and snow traction.